Hi there,

I'm wondering how should string-foldcase behave for capital sigma at the end of word. For example, what should this return? (string-foldcase "XAOΣΣ")

According to Unicode's CaseFolding.txt capital sigma is mapped to small sigma. So this, I think and R6RS requires, should return "χαoσσ". However R7RS doesn't specify it so could this be implementation dependent or if the implementation supports Unicode it should respect it?

Cheers,

_/_/

Takashi Kato
Email: ktakashi@ymail.com

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